Common energy source in Indian villages is:
Wood and animal dung
The common source of energy in villages can be animal dung and wood which can be used to produce biogas in a biogas plant. Biogas typically refers to a mixture of different gases produced by the breakdown of organic matter in the absence of oxygen. Biogas can be produced from raw materials such as agricultural waste, manure, municipal waste, plant material, sewage, green waste or food waste. Biogas plants can be relatively simple structures that are built next to homes in some rural areas, to provide a source of gas for cooking and lighting.